diff options
Diffstat (limited to 'net/netfilter/nf_conntrack_netlink.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_netlink.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 59c08997bfdf..dd177ebee9aa 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -45,7 +45,6 @@ #include <net/netfilter/nf_conntrack_zones.h> #include <net/netfilter/nf_conntrack_timestamp.h> #include <net/netfilter/nf_conntrack_labels.h> -#include <net/netfilter/nf_conntrack_seqadj.h> #include <net/netfilter/nf_conntrack_synproxy.h> #ifdef CONFIG_NF_NAT_NEEDED #include <net/netfilter/nf_nat_core.h> @@ -58,8 +57,6 @@ MODULE_LICENSE("GPL"); -static char __initdata version[] = "0.93"; - static int ctnetlink_dump_tuples_proto(struct sk_buff *skb, const struct nf_conntrack_tuple *tuple, const struct nf_conntrack_l4proto *l4proto) @@ -545,7 +542,7 @@ static size_t ctnetlink_proto_size(const struct nf_conn *ct) len *= 3u; /* ORIG, REPLY, MASTER */ l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct)); - len += l4proto->nla_size; + len += l4proto->nlattr_size; if (l4proto->nlattr_tuple_size) { len4 = l4proto->nlattr_tuple_size(); len4 *= 3u; /* ORIG, REPLY, MASTER */ @@ -1111,6 +1108,14 @@ static const struct nla_policy ct_nla_policy[CTA_MAX+1] = { .len = NF_CT_LABELS_MAX_SIZE }, }; +static int ctnetlink_flush_iterate(struct nf_conn *ct, void *data) +{ + if (test_bit(IPS_OFFLOAD_BIT, &ct->status)) + return 0; + + return ctnetlink_filter_match(ct, data); +} + static int ctnetlink_flush_conntrack(struct net *net, const struct nlattr * const cda[], u32 portid, int report) @@ -1123,7 +1128,7 @@ static int ctnetlink_flush_conntrack(struct net *net, return PTR_ERR(filter); } - nf_ct_iterate_cleanup_net(net, ctnetlink_filter_match, filter, + nf_ct_iterate_cleanup_net(net, ctnetlink_flush_iterate, filter, portid, report); kfree(filter); @@ -1169,6 +1174,11 @@ static int ctnetlink_del_conntrack(struct net *net, struct sock *ctnl, ct = nf_ct_tuplehash_to_ctrack(h); + if (test_bit(IPS_OFFLOAD_BIT, &ct->status)) { + nf_ct_put(ct); + return -EBUSY; + } + if (cda[CTA_ID]) { u_int32_t id = ntohl(nla_get_be32(cda[CTA_ID])); if (id != (u32)(unsigned long)ct) { @@ -1566,9 +1576,11 @@ static int ctnetlink_change_helper(struct nf_conn *ct, static int ctnetlink_change_timeout(struct nf_conn *ct, const struct nlattr * const cda[]) { - u_int32_t timeout = ntohl(nla_get_be32(cda[CTA_TIMEOUT])); + u64 timeout = (u64)ntohl(nla_get_be32(cda[CTA_TIMEOUT])) * HZ; - ct->timeout = nfct_time_stamp + timeout * HZ; + if (timeout > INT_MAX) + timeout = INT_MAX; + ct->timeout = nfct_time_stamp + (u32)timeout; if (test_bit(IPS_DYING_BIT, &ct->status)) return -ETIME; @@ -1768,6 +1780,7 @@ ctnetlink_create_conntrack(struct net *net, int err = -EINVAL; struct nf_conntrack_helper *helper; struct nf_conn_tstamp *tstamp; + u64 timeout; ct = nf_conntrack_alloc(net, zone, otuple, rtuple, GFP_ATOMIC); if (IS_ERR(ct)) @@ -1776,7 +1789,10 @@ ctnetlink_create_conntrack(struct net *net, if (!cda[CTA_TIMEOUT]) goto err1; - ct->timeout = nfct_time_stamp + ntohl(nla_get_be32(cda[CTA_TIMEOUT])) * HZ; + timeout = (u64)ntohl(nla_get_be32(cda[CTA_TIMEOUT])) * HZ; + if (timeout > INT_MAX) + timeout = INT_MAX; + ct->timeout = (u32)timeout + nfct_time_stamp; rcu_read_lock(); if (cda[CTA_HELP]) { @@ -3407,7 +3423,6 @@ static int __init ctnetlink_init(void) { int ret; - pr_info("ctnetlink v%s: registering with nfnetlink.\n", version); ret = nfnetlink_subsys_register(&ctnl_subsys); if (ret < 0) { pr_err("ctnetlink_init: cannot register with nfnetlink.\n"); @@ -3441,8 +3456,6 @@ err_out: static void __exit ctnetlink_exit(void) { - pr_info("ctnetlink: unregistering from nfnetlink.\n"); - unregister_pernet_subsys(&ctnetlink_net_ops); nfnetlink_subsys_unregister(&ctnl_exp_subsys); nfnetlink_subsys_unregister(&ctnl_subsys); |